价值链成本管理模式在高新技术制造业的应用

随着高新技术制造业的不断发展,作为技术密集型的高新技术制造业对于成本管理的标准越来越高。企业竞争不只是某个环节的竞争,确保每个环节的成本控制、提高整个价值链的综合竞争力才能使企业拥有更强的竞争力。基于价值链的成本管理模式成为企业提高市场竞争力的一大利器。论文分析了价值链成本管理模式的理论和特征,以及现今理论的应用和结果,提出使用新型成本管理模式所要面临的困难与挑战,并对此提出部分建议。     

绿色维修技术在汽车处理中的应用价值

随着我国经济的快速发展,人们的生活质量得到改善,汽车保有量逐年递增。汽车修理工作的重要性日益突显,甚至成为影响社会发展的主要因素。在汽车修理工作中,一是要合理选择汽车维修技术;二是要重视汽车的危害因素,如环境污染。所以工作人员应该合理应用绿色维修技术,减少污染问题的出现。论文主要阐述在汽车处理中绿色维修技术的应用价值,仅供参考。     

Are gold,USD, and Bitcoin hedge or safe haven against stock? The implication for risk management

This study investigates whether gold, USD, and Bitcoin are hedge and safe haven assets against stock and if they are useful in diversifying downside risk for international stock markets. We propose a combined GO-GARCH-EVT-copula approach to examine the hedge and safe haven properties of gold, USD, and Bitcoin. We then examine the attractiveness of these assets in reducing stock portfolio risk by using downside risk measures estimated by the proposed approach and other competing models. We also evaluate the relative performance of the proposed model in reducing downside risk with the competing models. The findings of the study indicate that the USD is the most valuable hedge and safe haven asset closely followed by gold, while Bitcoin is the least valuable. It is also observed that the proposed combined approach performs best in reducing the portfolio downside risk. The findings of this study are of significance for portfolio managers and individual investors who wish to protect the portfolio value during market turmoil.     

中国工业技术进步的百年探索：历程、经验与展望 ——透视中国共产党百年奋斗历程

一百年来中国工业技术进步经历了从落后到追赶再到部分领先的过程。新中国成立后,中国工业生产力迅速提升,技术进步显著,高新技术及有关产业快速发展。其最重要的经验在于：第一,从人的角度出发,通过科教兴国战略积累了大量人力资本基础,通过优化生产关系充分调动了劳动者推动技术进步的积极性。第二,有效发挥了中国共产党领导下中国特色社会主义制度的优越性,通过顶层设计和五年规划引导推动技术进步的阶段目标和路线,利用举国体制集中攻关关键核心技术。第三,充分学习和借鉴其他国家的先进技术。当前,中国工业技术还面临着关键领域创新能力不强、工业企业的创新动力仍待激发、部分发达国家对中国进行技术封锁的威胁加大等问题。需要继续发挥举国体制优势,加快推进关键核心技术的攻关,进一步扩大高质量对外开放以提升工业技术进步的质量,多管齐下进一步激发企业的创新活力。     

Socioeconomic predictors of forest use values in the Peruvian Amazon: A potential tool for biodiversity conservation

Conservation is a crisis discipline requiring rapid action with limited funds. This study examines the potential of socioeconomic variables to predict forest use values. If natural resource use can be predicted from socioeconomic data, conservation planners could rapidly identify and focus conservation programs on the sectors of local populations that most intensively utilize local flora and fauna. Families in three communities in the northern Peruvian Amazon were surveyed over a 6-month period. Data were collected on use of flora and fauna from six locally determined use categories (food, medicine and poisons, wood, weavings, adornments, and “other”) in forest types of three age classes (fallow fields—very young forests, young secondary forests, and old secondary forests). Forest use values were the dependant variables calculated in $/ha/year. Socioeconomic variables included: age, education, family size, residence time, land worked, land owned, number of fishing nets, chickens, pigs, cows, and/or mules owned (all proxies for productive assets), and level of ecological knowledge (ability of informants to correctly identify forest species and answer basic questions about their biology). Ordinary least square multiple regressions were run independently for each forest type. Regressions were also run separately for the two most valuable use categories, food and wood. Low R² adjusted values (all < 0.3) reflect the difficulty in predicting human behavior due to confounding variables and complex interactions. Residence time and a household's community of residence were the most significant predictors of forest use values. Households in Vista Alegre, the community with the highest density of people and smallest landholdings per household, extracted the highest value of forest products per hectare. The longer a family stayed in any community the higher the value of forest goods they extracted. If families that lived in an area longest are the most intensive extractors of forest products, they should be a major focus for conservation programming. In addition, the higher value of products extracted from forests by some families may make them more open to strategies seeking to protect long-term viability of the resources they utilize. The importance of residence time also indicates that planners need to account for changes in the resource use patterns of stakeholders over time.     

客户知识的关键维度及其管理过程

客户知识成为企业维持持续竞争优势的关键资源。理解客户知识的内涵和关键维度是企业进行客户知识管理的前提和基础，论文结合不同行业企业的实践经验，提出客户知识应包括四个关键维度：用于客户的知识、来自客户的知识、关于客户的知识和共同创造的知识，并针对每个雏度分析了企业当前运用的管理方法，基于此．界定了客户知识管理的概念，构建了客户知识管理的过程模型，为企业有效进行客户知识管理提供参考。     

Is capital a collusion device?

Summary. We examine how irreversible capital reduces the possibility of a duopoly to sustain implicit collusion by grim strategies, when the product is homogenous and firms compete in quantities. Compared with the case of reversible capital, there are two countervailing effects: Deviation from an existing collusion is less attractive, because capital once installed causes costs forever. But the punishment will also be less severe due to the high capacity the deviating firm can build before punishment starts. The last effect dominates, meaning that the commitment value of capital is negative for all firms. If capital is irreversible, collusion breaks down for realistic magnitudes of interest rates. Received: April 30, 1999; revised version: November 30, 2001     

Preferences in the Future

Environmental economics has been much occupied with the discount rate, which is the value of future costs and benefits relative to present costsor benefits. But at least as important is the question of whatshould be discounted, that is, what the value of those future environmentalbenefits is to future generations. This paper analyzes the role for futurepreferences and discusses the state of knowledge. I argue that theappropriate discount rate is the market one, and that the real problemis determining future willingness-to-pay. This approach makes clearerthe connection between discounting and the valuation debate.This paper focuses on two features that have been prominent in that debate:existence value and reference dependence. I argue that thereis a vital connection between the two constructs and that this link yieldsimportant implications for future willingness-to-pay.     

Nonresponse in Contingent Valuation-reducing uncertainty in value inference

This paper focuses on problems associated with nonresponse in Contingent Valuation surveys. The results from a telephone follow-up survey show that value inference can be considerably improved by information on nonrespondents' attitudes.